Grate.



PATENTED DEG. 12, 1905.

'.T. WOOD.

GRATE.

APPLIGATION FILED 001.151,1904.

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ATTHNEYS No. 807,147. PATENTBD DEG. 12, 1905. J. WOOD.

GRATB.

APPLICATION FILED 00T.15,1904.

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Me @www l Afro/Mfrs UNITED STATES PATENT ormoni.

Specification of Letters Patent.

Patented Dec. 12, 1905.

Application filed October 15,1904. Serial No. 228,560.

To all whowt t may concern:

Be it known that I, J AMES Woon, a citizen of the United States, and a resident of Noroton, in the county of Fairfield and State of Connecticut, have invented a new and Improved Grate, of which the following is a full, clear, and exact description.

The invention relates to a rotary grate adapted particularly for house heating-stoves, but useful in connection with stoves and furnaces of all types.

The invention resides particularly in a certain peculiar arrangement of the rocker-bar on which the rotary grate is mounted and by means of which the grate is turned into dumping position, this bar coacting with the pinion for rotating or turning the grate to shake the same.

'lhe invention also resides in a peculiar lock device for said rocker-bar.

The invention further resides in various other features of major or minor importance, all of which will be fully set forth hereinafter, and particularly pointed out in the claims.

Reference is had to the accompanying drawings, showing'as an example the preferred embodiment of my invention, in which drawings like characters of reference indicate like parts in the several views, and in which- Figure 1 is a bottom plan view showing the base of the stove and illustrating my improved grate in position. Fig. 2 is a vertical section showing the grate in dumping position. Fig. 3 is a side elevation partly illustrating the locking device. Fig. 4 is a vertical section taken along the axis of the rocker-bar. Fig. 5 is a detail elevation showing the rocker-bar in section on the line 5 5 of Fig. 4, and Fig. 6 is a detail side elevation of the parts shown in Fig. 5 with a fragment of the base of the stove in section on the line 6 6 of Fig. 5.

10 indicates the base of the stove, which may `be of any desired form, and 11 indicates the rim at the top of the base on which the firebrick and top of the stove (not shown) are mounted.

l2 indicates the rotary grate which is set in the opening surrounded by the ledge 11 and which is capable of turning around its vertical axis to shake down the contents of the stove and also to swing around a horizontal axis completely to dump said contents. The grate 12 is formed on its under periphery with gear-teeth 14, which are in mesh with a pinion 15, formed onor fastened to a short shaft 16. This shaft is revolubly mounted in an opening 17 in the base of the stove and in a hanger-bearing 18 located inside of the base, as best shown in Fig. 4, the shaft 16 projecting beyond the base to permit the engagement therewith of a suitable tool for rotating the shaft. Upon the rotation of this shaft a rotary movement is imparted to the grate, as will be understood from the prior art.

19 indicates the rocker-bar,l which is preferably arched atits middle portion and formed with a socket 20. In this socket is revolubly fitted a stud 21, projecting downward from and attached to the grate 12, so that by this means the grate is mounted to turn and also to swing upon the rocking of the bar 19. The bar 19 has one end revolubly fitted in a socket 22, formed according to the structure here shown in the center of the pinion 15. The other end of the bar 19 is revolubly mounted in an opening 23, formed in the wall of the base 10 opposite the gear 15.

The base 10 has located just over the opening 23 a stop-lug 24, provided in its lower corner with a notch 25. Coacting with this stop-lug is an arc-shaped fiange 26, formed on or fastened to the rocker-bar 19, and a finger 27 is also carried by the rocker-bar and located at one end of the arc-shaped or semicircular flange. These parts 26 and 27, coacting with the lug 24, form a means for limiting therocking movement'of the bar 19 and also for holding it properly engaged inthe socket 22.

In assembling the parts 12, 16, and 19 the shaft 16 is placed in position from the inside of the base and the rocker-bar 19 is entered into the opening 23 also from the inside of the base. In entering the bar 19 into said opening the parts are disposed as shown in Fig. 6--that is to say, the nger 27 projecting downward and the flange 26 lying at one side of the lower part of the lug 24. After these positions have been assumed the bar is moved rightward (referring to Fig. 6) until the iiange 26 lies opposite the notch 25 in the lug 24, and the right-hand end of the rocker-bar is entered into the socket 22 of the shaft 16.

When this position has been reached, the bar 19 should be given a partial turn, which causes the flange 26 to move into the notch 25 and bear against the edge of the lug 24 in the manner shown in Figs. 4 and 5 and which brings the socket 20 into vertical position, the lug 27 finally engaging the stop-lug 24 at a point above the notch 25 to prevent further turning movement of the bar. The grate 12 TOOv IIO

should then be placed in position by moving it downward, so that its stud 21 will enter the socket 20, and the parts will then be assembled, as shown in Fig. 4. rIhis allows the shaft 16 to be turned to turn the grate, and it allows the bar 19 to be turned to swing or dump the grate. It will be observed in this connection that when the bar 19 turns it moves the grate around the circumference of the pinion without interfering with the mesh of the teeth of the pinion and those of the grate, and after the grate is in its vertical or dumping position it may still be rotated by the operation of the shaft 16, thus effectively clearing olf the ashes and cinders.

As best shown in Fig. 3, the bar 19 is pro.

vided at its outer or left-hand end with an arm 28, adapted to be received in a socket handle or lifter, (indicated by the broken lines 29 in Fig. 3,) so as to turn the arm and har 19 into dumping position. This arm 28 is provided with a shoulder 30, with which is engaged normally a dog 31, pivotally mounted on the base just above the bar 19. The dog 31 has a shoulder 31, engaging the shoulder 30, and a beveled end 31b outward from the shoulder. When the parts 31 and 3() are engaged, as the full lines in Fig. 4 show, rocking movement of the bar 19 in the direction to dump the grate is prevented and rocking movement of the bar in the opposite direction is prevented by the finger 27, above described. Upon engaging the handle 29 with the end of the arm 28 said handle will ride under the beveled end of the dog 31 and throw the same out of engagement with the shoulder 30, and then the arm 28 will be free to swing up into position, (indicated by dotted lines, the dog 31 riding idly over the lifter or handle 29. These devices provide a means for preventing accidental dumping of the grate; but at the same time they release the grate upon the adjustment of the stove-lifter with the dumpingarm.

Various changes in the form, proportions, and minor details of my invention may be resorted to at will without departing from the spirit and scope thereof. Hence I consider myself entitled to all such variations as may lie within the terms of my claims.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. The combination of a base or support having a stop-lug therein at its upper portion, the stop-lug having a notch in its lower edge, a

gear mounted to turn on the base on a hori zontal axis at a point opposite the stop-lug, said gear having a socket therein coincident to its axis, a horizontal rocker-bar having one end mounted to turn in the socket of the gear,

andthe other end mounted to turn and to slide in the base in a position under and adjacent to the stop-lug, said rocker-bar having near its second-named end an arc-shaped ange and a inger projecting from one end of the flange, the arc-shaped flange of the rocker-bar being adapted to move through the notch in the stoplug and the linger being adapted to engage the stop-lug to limit the rocking movement of the bar,and a horizontally-disposed grate mounted to turn on the rocker-bar on a vertical axis, the grate having peripheral teeth in mesh with the teeth of the first-named gear.

2. The combination with a base or support, of a rocker-bar having one end portion mounted to turn and to slide in the base, a grate carried by the bar, and means mounted on the base for sustaining the second end of the rocker-bar, said means having a socket receiving the second-named end of the bar, the base having an interior stop-lug with a notch in its lower edge, the stop-lug lying over the first-named end portion of the rocker-bar, and the rocker-bar having an arc-shaped flange adapted to move through the notch in the stop-` lug, and a finger projecting from one end of the flange and adapted to engage the stop-lug to limit the rocking movement of the bar.

3. The combination of a base or support, a rocker-bar mounted thereon,a grate carried by the rocker-bar, means for limiting the rocker movement ofthe bar in one direction, an arm attached to the rocker-bar, said arm having a shoulder thereon, a swinging dog mounted on the base and having a shoulder adapted to en-` gage the shoulder on the arm, the dog also having a beveled end outward of the shoulder adapted to be engaged by the handle for operating the arm, whereby to release the dog fromsthe arm.

4. The combination of a base or support, a rocker-bar mounted thereon, a grate held by the rocker-bar, means for limiting the rocking movement of the bar in one direction an arm attached to the rocker-bar outside ofthe base and adapted to be engaged by a handle to operate the rocker-bar, and a swinging dog mounted alongside of the said arm, the dog normally engaging the arm to prevent movement thereof, and the dog having a portion adapted to be engaged by said handle for operating the arm whereby to disengage the dog from the arm.

In testimony whereofI have signed my name to this speciication in the presence of two subscribing witnesses.

JAMES WOOD. Witnesses:

GEO. STEVENS, WILLIAM RUBLY.

IOC 

